/*
* Copyright (c) 2011-2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* Maintained at www.Open-FCoE.org
*/

#ifndef FCOE_SYSFS
#define FCOE_SYSFS

#include <linux/if_ether.h>
#include <linux/device.h>
#include <scsi/fc/fc_fcoe.h>

struct fcoe_ctlr_device;
struct fcoe_fcf_device;

struct fcoe_sysfs_function_template {
void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
void (*set_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
int (*set_fcoe_ctlr_enabled)(struct fcoe_ctlr_device *);
void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
};

#define dev_to_ctlr(d) \
container_of((d), struct fcoe_ctlr_device, dev)

enum fip_conn_type {
FIP_CONN_TYPE_UNKNOWN,
FIP_CONN_TYPE_FABRIC,
FIP_CONN_TYPE_VN2VN,
};

enum ctlr_enabled_state {
FCOE_CTLR_ENABLED,
FCOE_CTLR_DISABLED,
FCOE_CTLR_UNUSED,
};

struct fcoe_ctlr_device {
u32 id;

struct device dev;
struct fcoe_sysfs_function_template *f;

struct list_head fcfs;
char work_q_name[20];
struct workqueue_struct *work_q;
char devloss_work_q_name[20];
struct workqueue_struct *devloss_work_q;
struct mutex lock;

int fcf_dev_loss_tmo;
enum fip_conn_type mode;

enum ctlr_enabled_state enabled;

/* expected in host order for displaying */
struct fcoe_fc_els_lesb lesb;
};

static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
{
return (void *)(ctlr + 1);
}

/* fcf states */
enum fcf_state {
FCOE_FCF_STATE_UNKNOWN,
FCOE_FCF_STATE_DISCONNECTED,
FCOE_FCF_STATE_CONNECTED,
FCOE_FCF_STATE_DELETED,
};

struct fcoe_fcf_device {
u32 id;
struct device dev;
struct list_head peers;
struct work_struct delete_work;
struct delayed_work dev_loss_work;
u32 dev_loss_tmo;
void *priv;
enum fcf_state state;

u64 fabric_name;
u64 switch_name;
u32 fc_map;
u16 vfid;
u8 mac[ETH_ALEN];
u8 priority;
u32 fka_period;
u8 selected;
u16 vlan_id;
};

#define dev_to_fcf(d) \
container_of((d), struct fcoe_fcf_device, dev)
/* parentage should never be missing */
#define fcoe_fcf_dev_to_ctlr_dev(x) \
dev_to_ctlr((x)->dev.parent)
#define fcoe_fcf_device_priv(x) \
((x)->priv)

struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
struct fcoe_sysfs_function_template *f,
int priv_size);
void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
struct fcoe_fcf_device *);
void fcoe_fcf_device_delete(struct fcoe_fcf_device *);

int __init fcoe_sysfs_setup(void);
void __exit fcoe_sysfs_teardown(void);

#endif /* FCOE_SYSFS */